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Yamaha · Overhead-cam four-stroke single, wet sump, gearbox shares engine oil, chain drive

YZ 450

Library entry covers 2004-2025

56 factory 52 guideline

Published source

Yamaha 2015 YZ450F Owner's Service Manual, maintenance intervals pp.3-1 to 3-6 (ManualsLib viewer pp.89-94)

Factory source. Covers Yamaha 2015 YZ450F / YZ450FF Owner's Service Manual, 1SL-28199-81 (cover); other years not compared.

108 items for a 2024 model, grouped by interval the way a factory chart is laid out.

How this bike is built (what the schedule is based on)

Engine cycle: Four-stroke
Engine lubrication: Wet sump (oil in crankcase)
Oil filtration: Replaceable cartridge or spin-on filter
Valve gear: Overhead cam, screw/locknut adjusters
Ignition: Electronic (CDI / transistor / ECU)
Charging: Alternator / stator with rectifier
Battery: Wet cell (flooded lead-acid, needs topping up)
Fuel system: Fuel injection
Cooling: Liquid cooled
Primary drive: Gear or chain inside engine, shares engine oil
Gearbox oil: Shares engine oil
Clutch control: Hand lever, cable
Final drive: Chain
Front suspension: Telescopic fork
Rear suspension: Swingarm, single shock / cantilever
Front brake: Disc, hydraulic
Rear brake: Disc, hydraulic
Wheels: Spoked, tubed
Sidecar: No sidecar

Maintenance schedule

2024 Yamaha YZ 450

On the road: every 300 km

1 item

Check engine oil level

Pre-ride / on the road

Guideline

Each fuel stop on old machines. Dry sump: check the tank hot, engine idling or just stopped, per your manual.

On the road: every 500 km

3 items

Check lights, horn, brake light switches

Pre-ride / on the road

Guideline
Check tire pressures

Pre-ride / on the road

Guideline
Lubricate drive chain

Pre-ride / on the road

Guideline

Lube warm, ideally at the end of the riding day so it soaks in overnight. Sooner after rain.

On the road: every 800 km

1 item

Check coolant level

Pre-ride / on the road

Guideline

On the road: every 1,000 km

1 item

Check chain slack and rear wheel alignment

Pre-ride / on the road

Guideline

Every 1,600 km or 6 months

1 item

Inspect tire tread, sidewalls and date codes

Wheels and tires

Guideline

Every 5,000 km or 12 months

10 items

Check throttle cable(s) free play and return

Fuel and air

Guideline
Clean drive chain thoroughly (remove and soak, re-lube)

Final drive

Guideline

Non O-ring chains on old machines: remove, clean, soak in hot chain grease or lube, refit with the master link clip closed end leading.
Inspect chain and sprockets for wear (measure stretch)

Final drive

Guideline
Check steering head bearing adjustment

Front end

Guideline
Inspect fork seals, stanchions and fork boots

Front end

Guideline
Check footrests, pegs, rear brake and gear lever pivots

Rear suspension and frame

Guideline
Grease and check center / side stand and springs

Rear suspension and frame

Guideline
Check brake pads and discs

Brakes

Guideline
Check spoke tension and wheel true

Wheels and tires

Guideline
Check wheel bearings for play

Wheels and tires

Guideline

Every 6,500 km or 12 months

2 items

Inspect, clean and gap spark plugs

Engine

Guideline
Adjust clutch free play, lubricate cable and lever pivot

Primary and gearbox

Guideline

Every 8,000 km or 12 months

2 items

Change engine oil

Engine

Guideline

Pre-1970 machines: many owners run non-detergent or classic-spec oil with no filter, so short intervals matter. Dry sump: drain the tank and the crankcase/sump, flush the tank and clean the feed and return screens.
Replace oil filter

Engine

Guideline

Every 9,500 km or 12 months

7 items

Inspect coolant hoses and clamps

Engine

Guideline
Clean / inspect air filter

Fuel and air

Guideline

Mesh or oiled foam: clean and re-oil. Paper: blow out or replace. Some very early machines have no filter at all.
Check charging voltage and regulator / cut-out

Ignition and electrics

Guideline
Check swingarm bushes for play

Rear suspension and frame

Guideline
Inspect rear shocks for leaks and damping

Rear suspension and frame

Guideline
Lubricate control cables and lever pivots

Controls and cables

Guideline
Lubricate speedometer / tachometer cables, check drive

Controls and cables

Guideline

A dry speedo cable whips the needle and eventually kills the instrument.

Every 13,000 km or 2 years

1 item

Check and adjust valve clearances

Engine

Guideline

Every 16,000 km or 2 years

1 item

Compression test (or leak-down)

Engine

Guideline

Every 19,500 km or 2 years

4 items

Replace air filter element

Fuel and air

Guideline
Synchronize throttle bodies

Fuel and air

Guideline
Clean and grease rear suspension linkage

Rear suspension and frame

Guideline
Grease swingarm pivot

Rear suspension and frame

Guideline

Every 24,000 km or 3 years

1 item

Change fork oil

Front end

Guideline

Some early telescopic forks are grease filled or use very small oil quantities. Check your manual.

Every 25,500 km or 4 years

1 item

Replace spark plugs

Engine

Guideline

Every 29,000 km

1 item

Replace chain and sprockets (wear based)

Final drive

Guideline

Every 32,000 km or 4 years

2 items

Repack / replace steering head bearings

Front end

Guideline

Many old machines use loose balls in cups and cones. Taper roller conversions are common.
Repack / replace wheel bearings

Wheels and tires

Guideline

Cup-and-cone and taper roller hubs need periodic repacking and adjustment.

Every 38,500 km or 4 years

1 item

Replace fuel filter

Fuel and air

Guideline

Every 40,000 km or 6 years

1 item

Replace swingarm bushes / bearings

Rear suspension and frame

Guideline

Every 48,500 km or 6 years

1 item

Rebuild forks: seals, bushes, springs

Front end

Guideline

Every 2.5 h

24 items

Coolant level and leakage (check)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Cooling hoses (inspect)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every race (2.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Engine oil (check level)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every race (2.5 hours) and as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Exhaust pipe, muffler and protector (inspect and retighten)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Outside nuts and bolts (retighten)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours); see torque-check points p.1-25. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Radiator cap fitment (check)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours); test cap operation as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Relay arm and connecting rod (inspect, lubricate and retighten)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours); molybdenum disulfide grease. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Sprocket bolts (retighten)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Air filter (clean and lubricate)

Fuel and air

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours); use foam air-filter oil; replace as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Clutch (inspect and adjust)

Primary and gearbox

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours); replace housing, plates and springs as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Drive chain (clean, lubricate, adjust slack and alignment)

Final drive

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours); use chain oil; replace as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Drive chain guide (inspect wear)

Final drive

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every race (2.5 hours); replace guide and support as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Front fork (inspect and adjust)

Front end

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Front fork dust seals (clean)

Front end

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Front fork oil and dust seals (clean and grease)

Front end

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours); lithium soap base grease; replace oil seals as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Steering head free play (inspect and retighten)

Front end

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Frame (clean and inspect)

Rear suspension and frame

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Rear shock absorber (inspect, adjust and retighten)

Rear suspension and frame

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Swingarm (inspect, lubricate and retighten)

Rear suspension and frame

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours); molybdenum disulfide grease. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Brake disc, caliper, master cylinder and union bolts (retighten)

Brakes

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Brakes: lever position, pedal height, pivots, disc surface, fluid level and leakage (check)

Brakes

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Kickstarter lever, brake pedal and footrests (lubricate)

Brakes

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Tires and wheels: pressure, runout, wear, spoke looseness (inspect)

Wheels and tires

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Cables (check routing, grease; check and clean throttle cable)

Controls and cables

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every race (2.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.

Every 7.5 h

9 items

Engine oil (replace)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every third race (7.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Muffler fiber (replace)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every third race (7.5 hours), or when exhaust becomes louder or performance drops. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Oil filter element (replace)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every third race (7.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Spark plug (inspect and clean)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every third race (7.5 hours); replace as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Valve clearance (check)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every third race (7.5 hours); engine must be cold. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Fuel tank and fuel pump (inspect)

Fuel and air

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every third race (7.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Rear shock pillow balls and bearings (lubricate)

Rear suspension and frame

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every third race (7.5 hours) and after riding in rain. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Wheel bearings (check)

Wheels and tires

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every third race (7.5 hours); replace as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Wheels (lubricate)

Wheels and tires

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every third race (7.5 hours); lithium soap base grease. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.

Every 12.5 h

14 items

Camshaft sprocket (inspect)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every fifth race (12.5 hours); replace as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Camshafts and decompression system (inspect)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every fifth race (12.5 hours); replace as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Crankshaft (inspect and clean)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every fifth race (12.5 hours) and as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Cylinder (inspect and clean)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every fifth race (12.5 hours); replace as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Cylinder head (inspect and clean)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every fifth race (12.5 hours); check coolant passages, carbon and warpage, replace gasket. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Exhaust system (clean)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every fifth race (12.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Oil strainer (clean)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every fifth race (12.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Piston, pin, clip and rings (replace as a set)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every fifth race (12.5 hours) and as required; inspect for cracks and clean carbon as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Rotor nut (retighten)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every fifth race (12.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Valve lifters (inspect)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every fifth race (12.5 hours); replace as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Valve springs (inspect free length and tilt)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every fifth race (12.5 hours); replace as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Valves, seats and faces (inspect)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every fifth race (12.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Front fork oil (replace)

Front end

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): after break-in and every fifth race (12.5 hours). Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Steering head bearings (clean and lubricate)

Front end

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every fifth race (12.5 hours) and after riding in rain; replace bearings as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.

Every 6 months

1 item

Clean battery terminals, check charge and strap

Ignition and electrics

Guideline

Every 12 months

1 item

Brake fluid (replace)

Brakes

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every one year. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.

Every 2 years

5 items

Coolant (change)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every two years. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Replace coolant

Engine

Guideline
Inspect wiring, bullet connectors and ground points

Ignition and electrics

Guideline
Inspect frame, welds and lugs for cracks

Rear suspension and frame

Guideline
Replace brake fluid

Brakes

Guideline

Every 4 years

4 items

Fuel hose (replace)

Fuel and air

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): every four years; inspect as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Replace fuel lines

Fuel and air

Guideline

Old rubber and modern ethanol fuel do not mix well.
Inspect brake hoses; replace old rubber

Brakes

Guideline
Rebuild calipers and master cylinders (seals)

Brakes

Guideline

Every 6 years

2 items

Replace inner tubes and rim tape with tires

Wheels and tires

Guideline
Replace tires on age (regardless of tread)

Wheels and tires

Guideline

No interval set

6 items

Throttle body (inspect)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Valves (replace)

Engine

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Clutch lever free play (adjust)

Primary and gearbox

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Fork protector guide (replace)

Front end

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Transmission and shift forks, shift cam, guide bar (inspect; replace bearings)

Front end

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.
Brake pads (replace)

Brakes

Factory

Factory: Maintenance intervals (pp.3-1 to 3-6, ManualsLib viewer pp.89-94): as required. Columns as printed: after break-in, every race (about 2.5 hours), every third (about 7.5 hours), every fifth (about 12.5 hours), as required. After break-in or before each race, check the torque-check points.

Guideline lines: Intervals here are general guidelines for the machine's era and layout, compiled for this app. They are not factory manual figures. Check your workshop manual, and edit any interval in the bike's Schedule tab.